Dyeing apparatus for hat bodies



Patented Feb. 21, 1928.

VIKTOR 3611M, or VIENNA, USTRIA.

ZDYIEING APPARATUS FOR HAT BODIES.

Application filed January 4, 1927, Serial No. 158,976, and inCzechoslovakia January 21, 1926.

In the case of known dyeing apparatus for hat bodies the hat bodies arestretched or spread out upon perforated hat-body cones, and aresubjected to the dyeing operation while so stretched. The perforating ofsuch cones takes up a great deal of time, for the sieve-likeconstruction of such 'a cone requires a large number of holes, whichhave to be drilled individually in the hard material.

The invention consists in, utilizing as hat-body cone a cone which'isprovided on its surface with grooves or channels for leading away'theliquor. Such grooves or channels have the advantage, as compared withthe known perforation of the cone, that they can easily be milled orotherwise machined in the cone.

The leading away of the liquor by such grooves or channels on theexternal surface of the cone, arranged in the direction of thegenerating lines, renders possible the employment of flattened cones orflattenedc'one hat-body carriers for dyeing apparatus, this being afurther feature of the invention. Such flattened-cone hat-body carrierscould not hitherto be used for dyeing apparatus. It is not possible toconstruct such flattened cones as comparatively thin- Walled hollowcones, as is known for the known stretching cones of circular crosssection, as they cannot support the pressure and must be compressed. Inorder to obviate this the walls of such flattened cones would have to beof great thickness, which would occasion great difliculties in thedrilling, apart from the great length of such drilled holes, and theresistance occasioned by this length which opposes the flow of liquorthrough such long, narrow passages. Owing to the fact that according tothe invention the passages for drawing off the liquor are made in theform of grooves on the surface of the cone their wall thickness nolonger matters, and it becomes possible to employ solid cones.

The employment of flattened-cone bodycarriers has the advantage that inconsequence of the small amount of space they take up a plurality ofsuch carriers can be united within one bell, in which only a singlecircular cone could be lodged. The capacity of such dyeing apparatus canthereby be considerably increased.

In the drawing is diagrammatically illustrated in Figure l a hollow coneof circular cross section with channels or grooves run ning round it,and in Figures 2 and 3 a cone with channels or grooves runnnig in thedirection of its generating lines Figs. 4 and 5 are section and planviews of a flattened type of cone.

In Figure 1 the hollow cone a serving for the stretching of the hatbodies is provided with channels'or grooves?) in parallel circles, whichare connected at various points with the hollow interior of the cone Aby drilled holes (Z. The grooves or channels are arranged at suchdistances from one another that all parts of the surface of the cone areexposed to the suction effect of the pump producing the circulation ofthe dye liquor.

Such a construction of the cone has the advantage, as compared with theknown sieve-like construction of the cone, that there are considerablyfewer holes (Z to be drilled.

In the constructional example of Figures 2 and 3 a flattened cone isshown.

a is the flattened-cone carrier, in the surface of which channels 72 aremade, which serve as passages for drawing off the liquor.

Above the margin 0 of the body, which is v drawn in dotted lines, theconnection of the channels 79 is made by means of drilled holes (Z witha central cavity 6 which may however be very shallow and need not bedeeper than is required for the connection with the holes al In thismanner the connection of the channels with a common discharge passagemay be made.

Obviously instead of one cavity 6 several such cavities may be employed,in such a way that a plurality of channels are comprised by a commondischarge passage.

In order to prevent the hat bodies from being pressed into the grooves bor b during the dyeing, it is advisable to stretch over the cone a or aa permeable covering f, on which the hat body can bear with its entireinternal surface. Such a covering may consist of a jute fabric, wirenetting or the like, which is stretched upon the cone and results in thehat bodies not s gging over the channels.

The addition to the dyeing apparatus may be effected in the same manneras is known for the circular stretching cone.

One constructionalexample of dyeing apparatus with flattened cones isdiagrammatically illustratedin Figures 4: and 5.

IVithin a hell 1 forming the dyeing vessel which the liquor enters underpressure through the liquor inlet 2, are arranged for example several ofsuch flattened-cone hatbody carriers a side by side, from Which theliquor can escape in the centrethrough the cavity 6 Since theseflattened-cone body-carriers only take up a. little space, and aplurality of such carriers can be arranged (Figure 4) inside one hell 1,a means is provided for raising the capacity of the dyeing apparatus.

What I claim is:

1. Dyeing apparatus including a cone serving for the stretching of a hatbody pro vided on its surface With channels which form the passages forthe discharge of the dye liquor. v

2. Dyeing apparatus according to claim 1, characterized by the featurethat the channels forming the passage for the discharge of the dyeliquor communicate through holes With a cavity in the cone.

3. Dyeing apparatus according to claim 1, characterized by the featurethat the channels run along parallel circles.

4. Dyeing apparatus according to claim 1,

characterized by the feature that holes communicating with a cavity inthe cone are arrangedwithin the surface covered by the hat body.

5. Apparatus according to claim 1, characterized by the feature that forall the channels a common discharge passage is provided, which is formedby a cavity in the cone.

6. Apparatus according to claim 1, characterized by the feature thatupon the cone,

over the channels, a permeable covering is stretched, 1n order toprevent the hat bOdlQS.

sagging over the channels. 7 g

7 Dyeing apparatus according to claim 1, characterized in that theychannels forming the passage for the discharge of the dye liquor runalong conic sections.

8. Apparatus according to claim 1, characterized by the feature that theright, cross sect-ion of the cone serving for the stretching iselliptical.

In Witness whereof I have hereunto signed my name.

VIKTOR BOI-IM.

